diff options
Diffstat (limited to 'include/uapi/linux/gpio.h')
| -rw-r--r-- | include/uapi/linux/gpio.h | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/include/uapi/linux/gpio.h b/include/uapi/linux/gpio.h index 416ce47f2291..dfe8ade2742d 100644 --- a/include/uapi/linux/gpio.h +++ b/include/uapi/linux/gpio.h @@ -15,8 +15,9 @@ /** * struct gpiochip_info - Information about a certain GPIO chip - * @name: the name of this GPIO chip - * @label: a functional name for this GPIO chip + * @name: the Linux kernel name of this GPIO chip + * @label: a functional name for this GPIO chip, such as a product + * number, may be NULL * @lines: number of GPIO lines on this chip */ struct gpiochip_info { @@ -34,20 +35,21 @@ struct gpiochip_info { /** * struct gpioline_info - Information about a certain GPIO line - * @line_offset: the local offset on this GPIO device, fill in when - * requesting information from the kernel + * @line_offset: the local offset on this GPIO device, fill this in when + * requesting the line information from the kernel * @flags: various flags for this line - * @name: the name of this GPIO line - * @label: a functional name for this GPIO line - * @kernel: this GPIO is in use by the kernel - * @out: this GPIO is an output line (false means it is an input) - * @active_low: this GPIO is active low + * @name: the name of this GPIO line, such as the output pin of the line on the + * chip, a rail or a pin header name on a board, as specified by the gpio + * chip, may be NULL + * @consumer: a functional name for the consumer of this GPIO line as set by + * whatever is using it, will be NULL if there is no current user but may + * also be NULL if the consumer doesn't set this up */ struct gpioline_info { __u32 line_offset; __u32 flags; char name[32]; - char label[32]; + char consumer[32]; }; #define GPIO_GET_CHIPINFO_IOCTL _IOR('o', 0x01, struct gpiochip_info) |